维普中文期刊产品整合服务
48篇 您的检索式:作者名="Yaochun"
    题名 作者 年代 出处 被引量
1Shaking table test and numerical analysis of a 1:12 scale model of a special concentrically braced steel frame with pinned connections显示文摘This paper describes shaking table tests of a 1:12 scale model of a special concentrically braced steel frame with pinned connections,which was fabricated according to a one-bay braced frame selected from a typical main factory building of a large thermal power plant.In order to investigate the seismic performance of this type of structure,several ground motion accelerations with different levels for seismic intensityⅧ,based on the Chinese Code for Seismic Design of Buildings,were selected to excite the model.The results show that the design methods of the members and the connections are adequate and that the structural system will perform well in regions of high seismicity.In addition to the tests,numerical simulations were also conducted and the results showed good agreement with the test results.Thus,the numerical model is shown to be accurate and the beam element can be used to model this structural system.Yu Haifeng Zhang Wenyuan Zhang Yaochun Sun Yusong 2010Earthquake Engineering and Engineering Vibration2010,9,1:7
2Thermal stability of LiFePO_4/C-LiMn_2O_4 blended cathode materials显示文摘Safety is important to lithium ion battery materials. The thermal stability of LiFePO_4/C-LiMn_2O_4 blended cathode materials is characterized by using TG, XRD, and SEM etc. The results show that LiFePO_4/C-LiMn_2O_4 possesses a worse thermal stability than pure spinel LiMn_2O_4 and pure olivine LiFePO_4/C. When LiFePO_4/C-LiMn_2O_4 blended cathode materials are sintered at 500°C under Ar atmosphere, the sintered cathode materials emit O_2, and appear impurity phases(Li_3PO_4, Fe_2O_3, Mn_3O_4). It is deduced that some chemical reactions take place between different materials, which leads to a worse discharge specific capacity. LiFePO_4/C-LiMn_2O_4 blended cathode materials, therefore, need to be managed and controlled strictly for the sake of thermal stability and safety.DU YuanChao HUANG XiaoPeng ZHANG KeYu LIANG Feng LI QiuXia YAO YaoChun DAI YongNian 2017Science China(Technological Sciences)2017,60,1:5
3Crystallined Hybrid Carbon Synthesized by Catalytic Carbonization of Biomass and in-situ Growth of Carbon Nanofibers显示文摘Crystallined hybrid carbon was synthesized by the catalytic carbonization of biomass(Pinus kesiya sawdust)at1100℃and in-situ growth of carbon nanofibers(CNFs)at 750℃from acetylene.The microstructure of the composite was characterized by scanning electron microscopy(SEM),X-ray diffraction(XRD),transmission electron microscopy(TEM)and high-resolution transmission electron microscopy(HRTEM).It was found that highly crystallined carbon composed of well-aligned graphene layers with interlayer spacing of 0.34 nm can be formed by catalytic carbonization of biomass.However,the structure of the in-situ growing CNFs is lessaligned.Based on the results of the investigation,the formation mechanism of the crystallined hybrid carbon was discussed.Owning to synergistic effect of the highly crystallined carbon and the conductive network formed by CNFs,the crystallined hybrid carbon shows 32.6%lower electrical resistivity than biocarbon.When being used as anode material of lithium-ion batteries(LIBs),the crystallined hybrid carbon and the biocarbon have nearly the same first coulombic efficiencies(CEs),however,the former has a discharge capacity of 67%higher than the latter since the second cycle.Shuhe Liu Shuchun Zhao Yaochun Yao Peng Dong Chao Yang 2014Journal of Materials Science & Technology2014,30,5:4
4Real-time monitoring of structural vibration using spectral-domain optical coherence tomography显示文摘Shuncong Zhong Hao Shen Yaochun Shen 2010Optics and Lasers in Engineering2010,,1:2
5Tests and finite element analysis of pin-ended channel columns with inclined simple edge stiffeners显示文摘Yaochun Zhang Chungang Wang Zhuangnan Zhang 2006Journal of Constructional Steel Research2006,,3:1
6Development andApplication of Terahertz Pulsed Imaging forNondestructive Inspection of Pharmaceutical Tablet 显示文摘Shen Yaochun Taday Philip F 2008IEEE Journal of Selected Topics in Quantum Electronics(S1077-260X)2008,14,2:1
7Hydrogenation of sulfur dioxide to hydrogen sulfide over Fe/γ-AlzO3 catalysts 显示文摘Li Kuotseng Hung Yaochun 2003Applied Catal B2003,40,1:1
8Hydrogenation of sulfur dioxide to hydrogen sulfide catalysts on chromium promoted Fe/SiO2 显示文摘Li Kuotseng Hung Yaochun Ko Tienting 2003Applied Catal B2003,46,1:1
9Synthesis and characterization of LiCo x Mn2?x O4 cathode materials显示文摘Yaochun Yao Ph D Yongnian Dai Bin Yang Wenhui Ma Takayuki Watanabe 2007Journal of Wuhan University of Technology - Mater Sci Ed2007,,2:1
10Effect of Pore Structures on the Electrochemical Performance of Porous Silicon Synthesized from Magnesiothermic Reduction of Biosilica显示文摘Two kinds of porous silicon(PS) were synthesized by magnesiothermic reduction of rice husk silica(RHS) derived from the oxidization of rice husks(RHs). One was obtained from oxidization/reduction at 500 ℃ of the unleached RHs, the other was synthesized from oxidization/reduction at 650 ℃ of the acidleached RHs. The structural difference of the above PS was compared: the former had a high pore volume(PV, 0.31 cm3/g) and a large specific surface area(SSA, 45.2 m^2/g), 138 % and 17 % higher than the latter, respectively. As anode materials for lithium ion batteries, the former had reversible capacity of 1 400.7 m Ah/g, 987 m Ah/g lower than the latter; however, after 50 cycles, the former had 64.5 % capacity retention(907 m Ah/g), which was 41.2 % higher than the latter(555.7 m Ah/g). These results showed that the electrochemical performance of PS was significantly affected by its pore structures, and low reduction temperature played the key role in increasing its porosity, and therefore improving its cycling performance.刘树和 LIU Bin YAO Yaochun DONG Peng ZHAO Shuchun 2016Journal of Wuhan University of Technology(Materials Science)2016,31,5:1
11Fabrication,characterization and photovoltaic study of a TiO2 microporous electrode显示文摘Shen Yaochun Wang Lin Lu Zuhong 1995Thin Solid Films1995,257,1:1
12Investigation on in-flight melting behavior of granulated alkali-free glass raw material under different conditions with 12-phase AC arc显示文摘Yao Yaochun Yatsuda Kazuyuki Watanabe Takayuki 2008Chemical Engineering Journal2008,144,:1
13Tests and finite element analysis of pin-ended channel columns with inclined simple edge stiffeners显示文摘Zhang Yaochun Wang Chungang Zhang Zhuangnan 2007Journal of Constructional Steel Research2007,63,3:1
14Neural based fuzzy identification and its application to modeling and control of complex system显示文摘Jin Yaochun 1995IEEE Transaction on System Man and Cybernetics1995,26,6:1
15High Temperature Thermoelectric Properties of Dy-doped CaMnO_3 Ceramics显示文摘Dy-doped CaMnO_3 ceramics have been synthesized by co-precipitation method combined with the solid-state reaction.Phase composition and microstructure analysis indicate that high density and pure CaMnO_3 phase can be achieved.The electric conductivity can be enhanced by Dy doping,and result in a slight increase of the thermal conductivity.The highest dimensionless figure of merit ZT of 0.15 has been obtained at 973 K for x = 0.02 sample,which is about 4 times larger than that of the pure CaMnO_3,which indicate that CaMnO_3can be a promising candidate for n-type thermoelectric material at high temperature.Bin Zhan Jinle Lan Yaochun Liu Yuanhua Lin Yang Shen Cewen Nan 2014Journal of Materials Science & Technology2014,30,8:1
16Experimental study of hysteretic behaviour for concrete-filled square thin-walled steel tubular columns显示文摘Zhang Yaochun Xu Chao Lu Xiaozhe 2007Journal of Constructional Steel Research2007,63,:1
17A first-principles study of helium diffusion in quartz and coesite under high pressure up to 12GPa显示文摘Helium diffusion in mantle minerals is crucial for understanding mantle structure and the dynamic processes of Earth's degassing.In this paper,we report helium incorporation and the mechanism of its diffusion in perfect crystals of quartz and coesite.The diffusion pathways,activation energies(Ea),and frequency factors of helium under ambient and high pressure conditions were calculated using Density Functional Theory(DFT)and the climbing image nudged elastic band(CI-NEB)method.The calculated diffusive coefficients of He in the quartz in different orientations are:D[100]=1.24×10^(−6)exp.(−26.83 kJ/mol/RT)m^(2)/s D[010]=1.11×10^(−6)exp.(−31.60 kJ/mol/RT)m^(2)/s.and in the coesite:D[100]=3.00×10^(−7)exp.(−33.79 kJ/mol/RT)m^(2)/s D[001]=2.21×10^(−6)exp.(−18.33 kJ/mol/RT)m^(2)/s.The calculated results indicate that diffusivity of helium is anisotropic in both quartz and coesite and that the degree of anisotropy is much more pronounced in coesite.Helium diffusion behavior in coesite under high pressures was investigated.The activation energies increased with pressure:Ea[100]increased from 33.79 kJ/mol to 58.36 kJ/mol,and Ea[001]increased from 18.33 kJ/mol to 48.87 kJ/mol as pressure increased from0 GPa to 12 GPa.Our calculations showed that helium is not be quantitatively retained in silica at typical surface temperatures on Earth,which is consistent with the findings from previous studies.These results have implications for discussion of the Earth's mantle evolution and for recognition thermal histories of ultra-high pressure(UHP)metamorphic terranes.Hong Liu Lingling Wang Shuchen Li Yaochun Yang Hua Tian Fengxia Sun Chaowen Xu Lei Liu Yi Li Yueju Cui Ying Li Jijun Zhao 2021Geoscience Frontiers2021,12,2:1
18High-dimensional kNN joins with incremental updates显示文摘Yu Cui Zhang Rui Huang Yaochun 2010Geoinformatica2010,14,1:1
19Effect of cy- cles and ion-exchange on the purification of lithium carbonate 显示文摘Wu Jian Yao Yaochun Dai Yongnian 2012Adv Mater Res2012,443,444:1
20Practical advanced design considering random distribution of initial geometric imperfections 显示文摘Zhang Yaochun Jin Lu Shao Yongsong 2011Advances in Structural Engineering2011,14,3:1
返回顶部 每页显示:
共3页 首页 上一页 第1页 下一页 末页 /3 跳转

网站首页 | 关于我们 | 联系我们 | 产品服务 | 客服中心 | 广告服务 | 版权声明 | 网站联盟 | 友情链接 | 售卡网点

版权所有© 渝B2-20050021-1 渝公网安备 50019002500403号 违法和不良信息举报中心

互联网出版许可证 新出网证(渝)字10号 全国400电话 - 免长途话费